.\"
.\" $Id: sq.1,v 1.12 2005/04/14 14:38:23 geoff Exp $
.\"
.\" Copyright 1992, 1993, 1999, 2001, Geoff Kuenning, Claremont, CA
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\"
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All modifications to the source code must be clearly marked as
.\"    such.  Binary redistributions based on modified source code
.\"    must be clearly marked as modified versions in the documentation
.\"    and/or other materials provided with the distribution.
.\" 4. The code that causes the 'ispell -v' command to display a prominent
.\"    link to the official ispell Web site may not be removed.
.\" 5. The name of Geoff Kuenning may not be used to endorse or promote
.\"    products derived from this software without specific prior
.\"    written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY GEOFF KUENNING AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\"
.\" $Log: sq.1,v $
.\" Revision 1.12  2005/04/14 14:38:23  geoff
.\" Update license.
.\"
.\" Revision 1.11  2001/07/25 21:51:46  geoff
.\" Minor license update.
.\"
.\" Revision 1.10  2001/07/23 20:24:04  geoff
.\" Update the copyright and the license.
.\"
.\" Revision 1.9  2000/07/19 23:30:12  geoff
.\" Add a bugs section, and mention gzip instead of compress
.\"
.\" Revision 1.8  1999/01/07 01:57:39  geoff
.\" Update the copyright.
.\"
.\" Revision 1.7  1995/11/08  05:09:25  geoff
.\" Put the synopsis on one line so some versions of "makewhatis" don't
.\" break.
.\"
.\" Revision 1.6  1994/01/25  07:12:07  geoff
.\" Get rid of all old RCS log lines in preparation for the 3.1 release.
.\"
.\"
.TH SQ 1 LOCAL
.SH "名稱"
sq, unsq \- 壓縮或解壓縮一個已排序的單詞列表
.SH "總覽"
.B sq
< infile > outfile
.PP
.B unsq
< infile > outfile
.SH "描述"
.I sq
壓縮一個排過序的單詞列表（一個字典）。
例如：
.RS
sort \-u /usr/share/dict/words | sq | gzip \-9 > words.sq.gz
.RE
會以接近 4 的壓縮係數對字典進行壓縮。
.PP
.I unsq
解壓
.I sq
的輸出。例如:
.RS
gunzip < words.sq.gz | unsq | sort \-f \-o words
.RE
會解壓 
.I sq
所壓縮的字典。
.P
壓縮過程將會去除共同的字首，將它們替換為單個字元，以此編碼先前單詞中的共同部分。
字首的長度由單個可列印字元編碼：
0\-9 代表 0\-9，A\-Z 代表 10\-35，a\-z 代表 36\-61。
.SH "缺陷"
.I sq
和
.I unsq
只能處理最長 256 字元的單詞。
輸入資料必須已經過排序，且不可出現重複單詞。
.SH "作者"
Mike Wexler
.SH "參見"
compress(1), sort(1).
.SH "跋"
.br
本頁面中文版由中文 man 手冊頁計劃提供。
.PP
翻譯人員：Boyuan Yang <073plan@gmail.com>
.br
獲取日期：2005-04-14
.br
翻譯日期：2016-12-18
.br
原始軟體：ispell
.br
.br
中文 man 手冊頁計劃：\fBhttps://github.com/man-pages-zh/manpages-zh\fR